Improvement in fire-alarms



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JOHN F. GUWELER STENGEL, OF CROTVON, MIGl-liilfi-AN.l

Letters Patent No. 74,339, dated February 11,1868. v I i IMPROVEMENT IN FIREALilItllllS.`

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TO ALL WHOM- I'IV MAY CONCERN:

Be it known that we, JOHN F. GAUWEILER anclvJos'r Srnnennof Groton, in the county of ewaygo, and State of-Michgan, have invented certain new and useful Improvements in Fire-Alarms; and we do hereby Y declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked, thereon, which form a. part of this specification.

Figure 1, in the annexed drawing', which makes a part of this specification, represents a plan view of our fire-alarm. l y

Figure -2 is a sideelevation of one of the indicators, showing the position in which it will be when the alarm is given.

Figure 8 is an inside plan view of the tank Awith Athe bot-tom removed. y

The letter A, in iig. 1, represents a box containing the clock-work necessary to give the alarm. b designates e. seriesof indicators, corresponding in number with the apartments in the house to which the alarm is applied. The indicators b will be numbered-to correspond with the numberson the several apartments. Each of the indicators will be connected with its respective apartment by means ofA awire, c, the said wire consisting of"A sections, eight or t'en inches in length, soldered together. T-hepobject'of forming a continuous' wire in this manner is,that the action of're at any point will melt-the solder, `and the end of the wire connected with the indicator, being severed from the remaining portion, will leave the` alarm free to act inthe manner hereinafter described.. -Thc indicators, as represented in Iig. 1, and marked from one to eleven, are'in the position occupied before an alarm. In tig. 2, the letter b represents an indicatorin the position to sound the alarm. e designates a loop of ,strong wire, the-ends of which are mndeto plcyouthe same axis upon whichA the indicators 'have their motion. Each of Atheindicators has a spring, g, which will force. it up'in the position as seen in iig.' 2, the moment the cord or wire which holds the said indicator down is severed, when,`-by theupward motion of indicator b, the loop cis raised, as seen in iig. 2. 71, represents' a lever, `one en d of which rests'on loop c,'n'nd the opposite end pressing against the armf, which said arm -s'connectedkwith pivoted rod an. sdesigriates a pallet,y

which is attachedto rod m, with its hooked endsresting between the teeth of the wheel that operates the clockwork. The l'ever 7i, which either arrests or gives motion to the alarm, ispivoted at the point t, and at its other end is made to press on loop e, by means of the India-rubber spring t'. It will be observed.i that the moment any one of the indicators is thrown upward by spring g, as already described, the 4loop e will elevate the end of lever t, causing the opposite end of said-lever to fall below the arm f, andby this operation relieve the wheel from the pallet s. The clock-work being now in motion, the alarm will ,be given by hammerltt on thebell d. E represents a-tank, made ot' any suitable material for containing water, and is to be attached to the interior .-of' a room, or to any other part of a dwelling-house The said tank willhave two partitions o, which cross each other at right angles, (see iig. 3,) and also a number. of openings in its rim for the escape of thewater, tho said openings being a little above the level of the water when the tank is placed in a horizontal position. On the .rim 'of `the tank E will 'be fastened the four eyes c,`to which the like number of cords arel attached. for suspend.` ing'the said tank to the ceiling of the room in which it is to operate. When thus suspended, the tank will have a horizontal rotary motion given to it until the suspending-cords are twisted together, and will be held in that position by another cord connecting the tank with the wire that controls the alarm. Thus the re that melts the solder and disrupts thewi're, will also burn the cord that holds the tank E, which will, by the untwisting of tle vsuspendingcords have a rapid rotary motion, and-throw the .water.rapidlythroughout the apartment, and thereby extinguishing the tire, or else so checking it as to bring it under e'nsyicontrol. In case cords should be used instead of wire to act on the indicators, we would interpose spiral springs j, at stated distances, for preserving an equabl-e tension. From the wires vconnected with the indicators, which said wires will run near the ceiling, there-will be pendent4 cords or tape saturated with any inflammable composition. Asthese pendent strips will approach the'vloor, they will ignite when thelirc breaks cnt in :that direction, and communicate the dame to' the wire that operates the indicators,- and thus sound the' alarm:

` Having 'thus described our invention, what we claim, andldesir'e to secure byLetters Patent, is-

1. The indicators b b, numbered or lettered, and operating substantially Ain the rmtnnerset forth.

2. 'In combination. therewith, we claim loop e, as and for the purpose described.

3. Theiemployment of spring-lever t, in combination with loop e, substantially as specified.l

4. The tank E, when suspended and`operated substantially asdescribed. i

In testimony that wejclaim vthe foregoing as our own; we aix our signatures in presence of two witnesses.

' i JOHN F. GAUWEILER,

JOST STENGEL.

Witnesses:

PHILIP A. HARRISON, GEORGE W. BENNETT. 

